It's not that simple.

For one thing, lead times are long and costs are high so there is a huge risk that your capital will be wasted if costs come down before projects are complete.

Secondly not all the bottlenecks can simply have a new entrant. For example, the article cites panama canal constraints as a factor. Launching a competitor to the panama canal requires more than just time and money, it requires political and geographic opportunities.

The new entrants just need to order a few 150,000 tonne container ships from Korea, these should be ready in a few years then they'll be good to go, as long as the incumbents don't sneakily cut prices just as their new ships are ready, they should be golden...

You are being downvoted but you're right. New entrants are joining the market. Problem is, these are usually smaller local players who don't have enough capacity to have any influence on rates.

https://theloadstar.com/ellerman-city-liner-relaunches-china...